Suncor Energy announces new branded marketing deal

Calgary Alberta (April 9, 2009) -- Suncor Energy (U.S.A.) Inc. today announced that it has signed a branded marketing agreement with Shell Oil Products U.S. The agreement will allow Suncor and its network of branded marketers to sell Shell branded fuel in
Colorado.

"We're pleased to have signed this marketing agreement with Shell," said Steve Douglas, vice president, Supply and Marketing. "Suncor views our branded sales channel as key to our success in
Colorado. This agreement positions Suncor well to continue to provide quality fuels to our marketers and consumers under the Shell brand, the number one selling gasoline brand in
America."

Currently, Suncor has an agreement to market and sell fuel under the Phillips 66 brand in
Coloradothrough July, 2013. During the transition and through the end of the Phillips 66 agreement, Suncor will be marketing and selling Phillips 66 and Shell branded fuel.

"Signing our agreement with Shell now gives Suncor ample time to transition our network of branded marketers to the Shell brand offering," said
Douglas.

Suncor Energy (U.S.A.) Inc. is a wholly-owned subsidiary of Suncor Energy Inc., an integrated energy company based in
Calgary,
Canada. Suncor Energy U.S.A.'s business includes refining operations and retail sales in Colorado under the Shell® and Phillips 66® brands, and pipeline operations in
Coloradoand
Wyoming. Suncor's common shares (symbol: SU) are listed on the
New Yorkand
Torontostock exchanges. Suncor Energy (U.S.A.) Inc. is an authorized licensee of the Shell® and Phillips 66® brands and marks in connection with the sale of motor fuels in the state of
Colorado.

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For more information about Suncor Energy, please visit our web site at www.suncor.com.